MINOR: frontend: retrieve the ALPN name when available
Here we try to retrieve the negociated ALPN on the front connection.
This will be used to decide whether or not we want to switch to H2.
diff --git a/src/frontend.c b/src/frontend.c
index 4ad3cfe..efb6bde 100644
--- a/src/frontend.c
+++ b/src/frontend.c
@@ -56,6 +56,14 @@
struct connection *conn = objt_conn(sess->origin);
struct listener *l = sess->listener;
struct proxy *fe = sess->fe;
+ const char *alpn_str = NULL;
+ int alpn_len;
+
+ /* check if we're in HTTP mode, directly connected to the connection,
+ * and with ALPN advertising H2.
+ */
+ if (conn->owner == &s->si[0])
+ conn_get_alpn(conn, &alpn_str, &alpn_len);
if ((fe->mode == PR_MODE_TCP || fe->mode == PR_MODE_HTTP)
&& (!LIST_ISEMPTY(&fe->logsrvs))) {